Research and development of high-T c SMES

Ataru Ichinose, Hirofumi Kasahara, Hisayoshi Sakaki, Shirabe Akita, Atsushi Ishiyama, Atsushi Maruyama, Seiichi Koso

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    High-T c superconducting technology is thought to provide many merits for SMES systems. For example, a cry-ocooled system can be used as a cooling system for High-T c superconducting coils, indicating that an operation temperature can be selected from a wide-temperature range below critical temperatures. Refrigerator cooling operation temperature for High-T c SMES can be elevated more than 20 K from conventional 4.2 K. As a result, the heat capacity of coil system becomes much larger than that at 4.2 K, indicating that thermal diffusion time constant becomes much longer. If we could absorb transient heat generation with heat capacity of the coil, SMES systems can be designed under the over current state of critical current for a short duration. As a cooling capacity for an average heat load will be enough to cool High-T c superconducting coil system for SMES, the refrigerator system cost can be much lower than that for a SMES system using Low-T c superconductors. Moreover, we are developing high critical current superconducting wire for SMES system. The Bi2212 Rutherford conductors can carry 4 kA at 26 K under cryocooling. We also estimate the superconducting wire cost of the whole coil system, which is designed to minimize the superconductor volume. The conclusion is that the cost of High-T c SMES system will be reduced by using the low-cost YBCO superconducting wires in the future.

    Original languageEnglish
    Pages (from-to)1947-1950
    Number of pages4
    JournalIEEE Transactions on Applied Superconductivity
    Volume15
    Issue number2 PART II
    DOIs
    Publication statusPublished - 2005 Jun

    Fingerprint

    research and development
    Superconducting wire
    coils
    Critical currents
    Refrigerators
    Superconducting materials
    Specific heat
    refrigerators
    Costs
    wire
    costs
    Cooling
    critical current
    Temperature
    Thermal diffusion
    specific heat
    Heat generation
    cooling
    Thermal load
    Cooling systems

    Keywords

    • Bi2212
    • Cryocoolers
    • High-T superconductors
    • SMES
    • YBCO

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Physics and Astronomy (miscellaneous)

    Cite this

    Ichinose, A., Kasahara, H., Sakaki, H., Akita, S., Ishiyama, A., Maruyama, A., & Koso, S. (2005). Research and development of high-T c SMES. IEEE Transactions on Applied Superconductivity, 15(2 PART II), 1947-1950. https://doi.org/10.1109/TASC.2006.849342

    Research and development of high-T c SMES. / Ichinose, Ataru; Kasahara, Hirofumi; Sakaki, Hisayoshi; Akita, Shirabe; Ishiyama, Atsushi; Maruyama, Atsushi; Koso, Seiichi.

    In: IEEE Transactions on Applied Superconductivity, Vol. 15, No. 2 PART II, 06.2005, p. 1947-1950.

    Research output: Contribution to journalArticle

    Ichinose, A, Kasahara, H, Sakaki, H, Akita, S, Ishiyama, A, Maruyama, A & Koso, S 2005, 'Research and development of high-T c SMES', IEEE Transactions on Applied Superconductivity, vol. 15, no. 2 PART II, pp. 1947-1950. https://doi.org/10.1109/TASC.2006.849342
    Ichinose A, Kasahara H, Sakaki H, Akita S, Ishiyama A, Maruyama A et al. Research and development of high-T c SMES. IEEE Transactions on Applied Superconductivity. 2005 Jun;15(2 PART II):1947-1950. https://doi.org/10.1109/TASC.2006.849342
    Ichinose, Ataru ; Kasahara, Hirofumi ; Sakaki, Hisayoshi ; Akita, Shirabe ; Ishiyama, Atsushi ; Maruyama, Atsushi ; Koso, Seiichi. / Research and development of high-T c SMES. In: IEEE Transactions on Applied Superconductivity. 2005 ; Vol. 15, No. 2 PART II. pp. 1947-1950.
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